For this reason, make sure that you start your smørrebrød right, with real Danish rugbrod or rye bread. Danish rye is a dense, grainy bread that will add tons of flavor to your sandwich and provide a sturdy base for toppings. You can find it in some bakeries, or you can make it yourself. There are several recipes out there, but we like this one , which doesn’t require quite as long a fermentation as some others.